New acid-free, water-based Colour Liquids for ‘true to shade’ colouring of zirconia frame work by dipping. The new Colour Liquids are water-based and acid-free. Application is by dipping of zirconia frame work. The acid-free impregnation can reduce drying time of the frame work by up to 30%. The new formulation creates warmer and even more ‚true-to nature‘ colours. The new Liquids cover the complete ‚classic-V‘ shade range from A1 – D4. All colours are available in 50 or 100ml bottles.